Link looks rather "scammy" to me. One can only buy Musio directly through Cineamples at musio.com.
They recently removed the ability to get a lifetimee sub from their store; according to the "official" sources, you can still purchase one only through their support, and for $999.
That being said, I'm a big Musio fan. I jumped at the lifetime for $499 when they offered it (and a rather impulse buy that was), but thus far, its been the best money I've spent on orchestral libraries.